Answer:
-4a^2+7a+4 , a=2 or -1/4
Step-by-step explanation:
Take -4 + 3a2 from 7a - a2
It means 7a -a^2 - (-4+3a^2)
7a -a^2 +4-3a^2
7a -a^2-3a^2+4
7a -4a^2+4
-4a^2+7a+4
-4a^2+8a-a+4
-4a^2-a+8a+4
-a(4a+1)+2(4a+1)
(-a+2)(4a+1) =0
-a+2=0 4a+1=0
-a=-2 4a=-1
-a/-1=-2/-1 a=-1/4
a=2 or -1/4
Answer:
3/4
Step-by-step explanation:
7/12-11/16
7-11=3
12-16=4
3/4
Answer:
Step-by-step explanation:
Option A
9.21 * 10³ = 9,210 ≠ 921
Option A is FALSE.
Option B
9.21 * 10¹ = 92.1
Option B is TRUE.
Option C
0.921 * 100 = 92.1 ≠ 921
Option C is FALSE
Option D
0.921 * 10⁴ = 9,210
Option D is TRUE
Option E
0.0921 * 10² = 9.21
Option E is TRUE
Answer:
3 plus -5 means you go backwards from +3 to -2 thats your answer
Step-by-step explanation:
Step-by-step explanation:
to solve for a,
f(-1) = 5
a(-1)^2 + 1 = 5
a + 1 = 5, so a=4
